【mybatis】02-spring集成

POM配置

<dependency>
  　　<groupId>org.mybatis</groupId>
     <artifactId>mybatis</artifactId>
     <version>3.5.6</version>
</dependency>
<dependency>
    <groupId>org.mybatis</groupId>
    <artifactId>mybatis-spring</artifactId>
    <version>2.0.6</version>
 </dependency>

web.xml中指定的spring配置

<context:component-scan base-package="com.smart.daoMybatis"/>
    <context:property-placeholder location="classpath:jdbc.properties"/>

    <bean id="dataSource"
        class="org.apache.commons.dbcp.BasicDataSource"
        destroy-method="close"
        p:driverClassName="${jdbc.driverClassName}"
        p:url="${jdbc.url}"
        p:username="${jdbc.username}"
        p:password="${jdbc.password}" />

    <!-- Mybatis config -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <!-- 指定mapper.xml配置文件 -->
        <property name="mapperLocations" value="classpath:mybatis/BoardMapper.xml" />
    </bean>

java实现：

@Repository
public class BoardMybatisDao extends BaseMybatisDao<User> {

    @Autowired
    SqlSessionFactory sqlSessionFactory;

    public List<Board> getAllBoards()
    {
        SqlSession sqlSession = sqlSessionFactory.openSession();
        List<Board> allBoards = sqlSession.getMapper(BoardMapper.class).getAllBoards();

        return allBoards;
    }
}

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开发经验：IDEA安装Free mybatis plugin插件后 

1、自动对Mapper.java和Mapper.xml进行跳转关联

 

 2、只在mapper.java定义函数，通过alt+enter生成xml的mapper语句

进一步选择SQL语句